1 files changed, 28 insertions, 0 deletions
diff --git a/java/structuralsearch-java/src/com/intellij/structuralsearch/impl/matcher/predicates/ReadPredicate.java b/java/structuralsearch-java/src/com/intellij/structuralsearch/impl/matcher/predicates/ReadPredicate.java
new file mode 100644
index 000000000000..ce25b998ba9b
--- /dev/null
+++ b/java/structuralsearch-java/src/com/intellij/structuralsearch/impl/matcher/predicates/ReadPredicate.java
@@ -0,0 +1,28 @@
+package com.intellij.structuralsearch.impl.matcher.predicates;
+
+import com.intellij.psi.*;
+import com.intellij.structuralsearch.impl.matcher.handlers.MatchPredicate;
+import com.intellij.structuralsearch.impl.matcher.MatchContext;
+import com.intellij.structuralsearch.impl.matcher.MatchUtils;
+
+/**
+ * Handler for value read
+ */
+public final class ReadPredicate extends MatchPredicate {
+  public boolean match(PsiElement patternNode, PsiElement matchedNode, MatchContext context) {
+    if (matchedNode instanceof PsiIdentifier) {
+      matchedNode = matchedNode.getParent();
+    }
+    if (matchedNode instanceof PsiReferenceExpression &&
+        ( !(matchedNode.getParent() instanceof PsiMethodCallExpression) &&
+          ( !(matchedNode.getParent() instanceof PsiAssignmentExpression) ||
+            ((PsiAssignmentExpression)matchedNode.getParent()).getLExpression() != matchedNode
+          )
+        ) &&
+        MatchUtils.getReferencedElement(matchedNode) instanceof PsiVariable
+       ) {
+      return true;
+    }
+    return false;
+  }
+}